Machine for manufacturing piston rings



I. FLAMMANG.

MACHINE FOR MANUFACTURING PISTON RINGS.

APPLICATION FILED OCT. 7. 1919.

1 ,29,4 1 7, Patented Sept. 19, 1922.

17 SHEETi-SHEET 1.

J. FLAMMANG.

MACHINE FOR MANUFACTURING PISTON RINGS.

'APPHCA ION FILED OCT. 7,19,19-

PatentedSept. 19, 1922.

I 7 SHEETS-SHEET 2- jfiorwegzi 1, 'FLAMMANG.

MACHINE FOR MANUFACTURING PISTON RINGS.

APPllCATlON FILED 001. 7, 1919.

1,429,41 7 v Patented Sept. 19, 1922.

17 SHEETSSHEET 4-- 'r-naya,

J. FLAMMANG.

MACHINE FOR MANUFACTURING PISTON RINGS.

APPLICATION FILED OCT. 7. 1919.

1,429,41 '7, Patented Sept. 19, 1922;

I7 SHEETS-SHEET 5.

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MACHINE FOR MANUFACTURING PISTON RINGS.

APPLICATION mzu OCT. 7. 1919.

I7 SHEETS-SHEET 6.

' a e-7176a A gK/gicagi 127 222% Patented Sept. 19., 1922.

J. FLAMMANG.

MACHINE FOR MAgVUFACTURING PISTON RINGS.

APPIICAIION FILED 0017,1919.

Patented Sept. 19, 1922.

17 SHEETS-SHEET 7.

J o %r1 ,Ffammang AIM; W

J. FLAME/SANG.

MACH INE FOR MANUFACTURING PISTON RINGS. AP ICATION FILED octji. 1919.

1329,41 '7, Patented Sept. 19,1922

IT SHEETSSHEET 8.

J. FLAMMANG. MACHINE FOR MANUFACTURING PISTON RINGS.

APPHCAUON FILED OCT. 7, 1919.

Patenfied Sept. 19, 1922.

I 7 SHEETS-SHEET 9- J. FLAMMANG.

MACHINE FOR MANUFACTURING PISTON RINGS.

APPHCATION FHED OCT-7. 1919.

1,429,4 7, Patented Sepr. 19,1922.

l7 SHEETS-SHEET l0- J. FLAMMANG.

MACHINE FOR MANUFACTURING PISTON RINGS.

APPLICATION FILED OCT- 7, I919.

1,429,417. I PatentedSept. 19,1922.

I7 SHEETSSHEET l1.

I1. FLAMMANG.

MACHINE FOR MANUFACTURING PISTON RINGS.

APPHCATION FllED OCT. 7, I919.

Patented Sept. 19, 1922 I7 SHEETS-SHEET IZ- As, \\l S J. FLAMMANG.

MACHINE F08 MANUFACTURING PISTON RINGS.

APPHQAHON FILED Oct. 7, 1919.

Patented Spt. 19,1922.

11 SHEETS-SHEET I3.

@ZwiQ M .I. FLAMMANG.

MACHINE FOR MANUFACTURING PISTON RINGS.

Patented Sept. 19, 1922.

APPLICATION FILED OCT- 7, I9I9.

I7 SHEETSSHEET -I 4.

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MACHINE FOR MANUFACTURING PISTON RINGS.

PatentedSept.19,1922.'

-APP|.lCA ON FILED OCT- 7. [919.

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1 kuwm II J/FLAMMANG.

MACHINE FOR MANUFACTURING PISTON RINGS.

APPLICATION FILED ON. 7. 1919.

1329317, PatentedSept. 19,1922.

1] SHEETS-SHEET l6- J. FLAMMANG'. MACHINE FOR MANUFACTURING PISTON RINGS. APPLICATION FILED OCT. 7. I919.

1,429,417.. Patentedsept. 19,1922.

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Patented Sept. 19, 1522.

UNITED STATES,

1,429,417 PATENT OFFICE.

G, 0] UNIVERSITY CITY, MISSOURI, ABSIGNOR '1O O'lmn G. STARK,

OF ST. LOUIS, MISSOURI.

MACHINE FOR MANUFACTURING PISTON RINGS.

Application filed October 7 1919. Serial R0. 828,972.

I To all whom it may concem Be it known that I, JoHN' FLAMMANG, a citizen of the United States, residin at University City, St. Louis County, and tate of Missouri, have invented a new and useful Machine for 'Manufacturing Piston Rings, of which the following is a specification.

This invention relates to a machine for manufacture of piston rings and more particularly to a machine adapted to cut ring blanks having parallel edges from cylindrical ring pots and to cut a slot inclined with respect to the edges of the ring blank through a segment of the circumference of the ring.

The invention consists in the novel design and arrangement of the parts and in the association of the several mechanisms adapted for the production of the product.

An object of the invention is to provide a machine adapted to cut a plurality of rings from a cylindrical ring pot and to form a slot in the ring inclined with respect to the edges thereof for a segment of the circumference of the ring.

Another object of the invention is to provide a machine including a cutter and a chuck for supporting the work in operative relationship with the cutter, with means for controlling the operation of the cutter toan automatic feeding mechanism whereby the Work is advanced to the cutting mechanism.

Another object of the invention is to provide in a machine of the character described, an automatic mechanism for controlling in co-ordination with the feeding and cutting the work supporting table whereby the work will be presented to the cutting mechanism in proper relationship to perform the duplex cutting operations of the machine. An other object of the invention is to provide-1n a mach ne of the character described, an automatlc stop mechanism for control- Im the operation of the machine.

dditlonal advantages and features of the construction Wlll be apparent from the following detaileddescrlption of an embodi-- ment of the invention taken in connection with the accompanying drawings in which:

Ftg. 1 1s a plan view of the machine. F g. 2 1s a front view thereof. F g. 3 1s a rear end elevation. F g. 4 is a rear view. F g. 5 is a front end elevation. Flg. 6 is a vertical section taken substantially on the line 6-6 of Fig. 1.

Fig. 7 is a horizontal crosssection through the cutter spindle tensioning device taken v.

substantially on the line 9--9 of Fi 10.

Fig. 10 is a vertical section of t e same device taken on the line 10-10 of Fig. 7

Fig. 11 is a vertical section of the driving head taken substantially on the line 11-11 of Fig. 8. A

Fig. 12 is a detailed view of the feed operating cam and the associated mechanism.

Fig. 13 is a detailed view of the cam construction and the associated parts controlhug the cutter positioning mechanism.

ig. 14 is an enlarged elevation of the machine head illustrating the mechanism for the longitudinal positioning of the cutter spindle.

Fig. 15 is an enlarged view of a portion of the cutter positionlng mechanism show ing particularly the mechanism for advancing the cutter longitudinally.

Fig. 16 is a cross section substantially on the line 16-16 of .Fig. 14 illustrating further details of the cutter positioning mach-- anism.

Fig. 1-7 is a cross section taken substantially on the line 1,717 of Fig. 14 further Fig. 19 is a view of the chuck in front elevation.

Fig. 20 is a rear face section of the chuck on the line 2020 of Fig. 19.

Fig. 21 is an enlarged view illustrating the driving and controlling mechanism for the chuck.

Fig. 22 is a vertical section through the same elements illustrating further details of the construction. I Fig. 23 is a face view of the cam controlling the chuck operating mechanism, viewed on the line 23-23 of Fig. 21.

Fig. 24: is a section through a portion of the chuck controlling mechanism taken substantially on the line 24-24 of'Fig. 21.

Fig. 25 is across section of a portion of the clutch controlling mechanism taken substantially on the line 2525 of Fig. 21.

Fig. 26 is a fragmentary view of a latch construction constituting a part of the chuck controlling mechanism showing the latch 1n unlatched position.

Fig. 27 is a detailed view of a pawl and ratchet connection in the chuck driving mechanism. I

Fig. 28 is a fragmentary plan view of a portion of the feeding mechanism for advancing the work to the cutter.

Fig. 29 is a front elevation of the same elements.

Fig. 30 is a side elevation of the same elements.

Fig. 31 is a view from the opposite side of the parts shown in' Fig 30, and taken substantially on the line 31-31 of Fig. 29.

Fig. 32 is a plan view of the table of the machine showing in dotted lines the adjustment of the .table in its position for supporting the work during the operation for cutting the inclined slot.

Fig. 33 is a cross vertical section taken on the line 33-33 of Fig. 32.

Fig. 34 is a detailed vertical cross section taken substantially on the line 34-34 of Fig 32 showing the pivot support for the swinging table. v

Fig. 35 is a vertical cross section through a portion of the mechanism for oscillating the swinging table.

Fig. 36 is a vertical section taken substantially on the line 36-36 of Fig. 35.

Fig. 37 is a verticalsection taken substantially on the line 37-37 of Fig. 35.

Fig. 38 is a section taken substantially on the line 3838 of Fig. 35.

Fig. 39 is a plan view of the automatic stop mechanism.

Fig. 4.0 is a front face view of a portion of the head of the machine illustrating a portion of the stop mechanism.

Fig. 41 is a side elevation of the ring pot from which the ring blanks are formed, with the cutting operations performed by the machine illustrated in construction lines.

mean? Fig. 4.2 is a front end view of the ring pot.

Fig. 43 is an edge view of the ring blank cut by the machine.

Fig. 44: is a diagrammatic view illustrating the cutting operation of the machine, and

Fig. 45 1s a cross section of the ring blank illustrating the manner in which the inclined cut therein is formed by the machine.

The machine includes several trains of mechanism associated to co-ordinately function in the roduction of the product of the machine. 11 order that the construction of each train of mechanism may be better un derstood, they will be described separately.

The mechanisms comprise, first, the cutter controlling mechanism which includes means for rotating the cutter, for raising and lowering it into contact with the work, and for moving it longitudinally of its axis in the operation for cutting the inclined slot; second, the mechanism for supporting the work, including the power connections for rotating the chuck by which the work is supported; third, the feeding mechanism for moving the chuck longitudinally of its axis to advance the work to the saw; fourth, the mechanism for shifting the table of the machine to present the work in its two ositions, the one for the straight cut, an the other for the inclined cut; and finally the stop mechanism for automatically stopping the operation of'the machine after the work has been completed.

Gutter controlh'ng mechanism.-The machine has a base 1, constituting a support therefor. A housin 2 is integrally formed with the base 1. he housing contains a portion of the cutter controlling mechanism. The rear wall of the housin made with an opening closed %y a removable cover plate 3 so that access may be attained to the mechanism within the housin The power for the operation of t e machine is derived from any suitable source, the indicated means being from a belt 4E driven from an overhead countershaft. A power shaft 5 is journaled in bearings 6 supported in the upper part of the housing 2, the power shaft extending rearwardly from the housing a sufiicient distance to provide space for a pair of pulleys 7 and 8, and for a driving pinion 9. The pulley 7 is loose on the power shaft, and constitutes an idler for the belt 4, while the pulley 8 is fast on the powershaft, constituting the drive pulley for the shaft.

The upper part of the housing 2 has guide ways 10, formed therein for supporting the vertically movable head 11 of the machine, which carries the cutter spindle.

The back face of the head is provided with rails 12 that lit within the guide ways 10 in the housing for holding the head in association with the housing, and providing a support and means whereby the head may be is preferably raised and lowered vertically. A bearing 13, constituting the cutter spindle support is mounted in a longitudinal bore 14 in the head 11. I y

The cutter spindle includes a sleeve 15 journaled within the bearing 13. The sleeve 15 is formed with a tapering portion 16 that matches with a'taper in the front end of the bearing 13, so that when the spindle is assembled and mounted in the bearing, it may be held from longitudinal movement with respect to the bearing. The sleeve 15 has an annular flange 17 that bears against a collar 18 interposed between the flange- 17 and a flange 19 on the front end of the spindle hearing. The collar 18 is provided so as to assure means'of taking up wear between th spindle and the bearing.

The front end of the cutter spindle is made separate from the portion 16 of the spindle, so that in the case of breakage a new piece may be inserted without disassembling the cutter mounting. The separate piece comprisesthe sleeve 20 having a tapering end that fits in a tapering opening in the end of the portion 16 of the spindle.

The cutter 21 is attached to the spindle, and the two parts of the spindle are held in association by means of a draw rod 22, that extends longitudinally through an axial bore in the spindle members.

The rod 22 is threaded at the frontend, and the cutter is removably clamped in place between the end of the spindle member 20 and a nut 23. The rod extends beyond the rear end of the sleeve 15 and receives, in threaded engagement, a centering nut 24 formed in the usual manner, with its inner body being tapered and received in a tapering end "in the spindle member. The projecting end of the sleeve 15 is arranged to support in fixed engagement a gear 25, which is removabl locked on the spindle by lock nuts 26. T e spindle is in parallel alinement with the power shaft. The pinion 9 meshes with the gear 25, thereby constituting a speed reducing connection between the power shaft and the spindle. The gears 9 and 25 have teeth of sufficient length and sufficient play between the teeth to prevent disengagement of said gears by the vertical movement of the head 11.

The spindle bearing is' arranged to be moved longitudinally in the machine head during the operation of cutting the inclined slot. In connection with the longitudinal movement of the spindle bearing, the full functioning of which will be more fully described hereinafter, a spring construction, illustrated particularly in Figs. 9 and 10, is provided. Surrounding the rear orifice of the bore in the machine head is a series of cylindrical pockets 27. A ring 28 supporting a series of pins 29 encompasses the spindle bearing near its rear end, and the pins 29 support and constitute guides for expansion springs 30, which are nested in and bear against the bottom of the cavities 27 at one end, and the ring 28 at the other end.

.The ring 28 is held in position by a collar 31 that is fitted over theend of the spindle bearing and rigidly connected therewith by any suitable means of attachment. The springs 30 are disposed at equi-distant points, so as to center the bearing for the cutter spindle in the bore in the head of the machine. The tendency of the springs 30 is to hold the bearing for the cutter spindle in its rearward longitudinal adjustment. 1

The shoulder 19 constitutes an abutment against the Wall of the front orifice of the bore in the head of the machine, and limits the rearward movement of the spindle hearing in its support. The forward movement of the spindle bearing is controlled by mechanism overcoming the power of the springs 30 in the manner that will be hereinafter fully described. 7

The mechanism for effecting the adjustment of the cutter spindle comprises a vertical shaft 32 journaled in bearings 33 supported within the housing 2. The power shaft 5 has a worm drive connection with the shaft 32, comprising a worm 34 and a Worm gear 35, the worm 34 being carried fast on the shaft 5, and the worm gear 35 being fast on the shaft 32.

A cam shaft 37 is journaled at right anr gles to the shaft 32 in bearings 38 sup-' ported by the housing 2 below the lower end of the shaft 32. The shaft 32 has speed reducing gear connections with the shaft 37 comprising a beveled pinion 39 supported at the lower end of the shaft 32, the pinion 39 meshing with a beveled gear 40 carried by the cam shaft 37 A double faced cam 41 is keyed, or otherwise attached to the shaft 37, and constitutes the actuator for raising and lowering the machine head in order to present the cutter to the work for the duplex cutting operations.

The long face 42 of the cam is developed on gradually increasing radii, with a relatively sharp depression at the end of the cam curve. This face of the c am gradually raises the head, bringing the cutter into gradual contact with the work. During the raising of the head, the work is held stationary by mechanism hereafter described, and after the cutter has been raised to the hight point it is held in contact with the work during the complete circular cut, after which it is depressed by the downward movement of the'head, as the cam roller reaches the shoulder at the end of the long face of the cam.

The short face 43 of the cam develops on gradually increasing radii from the shoul- 

